Send Email using WCF Service

Introduction

In this article I will tell you how to send email using a WCF Service. We can send email directly from the client; however, in some cases you can't send external emails directly. In that case we need a WCF service for sending an email from the client. In this article, I will first explain how to create a WCF service then try to implement email functionality using the WCF Service. In this article I am using GMail to send email. So the user must have a GMail account for sending emails.  

1. Create WCF Service Class Library

Create a new Project WCF Class Library Project and Name it EmailServices

Step 1: Create service contract as IEmailService and add OperationContract SendEmail for sending email. This method uses GMail user address, password, and email to, cc, and subject as parameters:

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[ServiceContract]
public interface IEmailService  { 
    [OperationContract]
    string SendEmail(string gmailUserAddress, string gmailUserPassword, 
    string[] emailTo,string[] ccTo, string subject, string body, bool isBodyHtml);           
}

Step 2: Add the EmailService class and implement IEmailService.

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public class EmailService : IEmailService
{
    private static string SMTPSERVER = "smtp.gmail.com";
    private static int PORTNO = 587;

    public string SendEmail(string gmailUserName, string gmailUserPassword,  
       string[] emailToAddress, string[] ccemailTo, string subject, string body, bool isBodyHtml)
    {            
        if (gmailUserName == null || gmailUserName.Trim().Length == 0)
        {
            return "User Name Empty";
        }
        if (gmailUserPassword == null || gmailUserPassword.Trim().Length == 0)
        {
            return "Email Password Empty";
        }
        if (emailToAddress == null || emailToAddress.Length == 0)
        {
            return "Email To Address Empty";
        }

        List<string> tempFiles = new List<string>();

        SmtpClient smtpClient = new SmtpClient(SMTPSERVER, PORTNO);
        smtpClient.EnableSsl = true;
        smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
        smtpClient.UseDefaultCredentials = false;
        smtpClient.Credentials = new NetworkCredential(gmailUserName, gmailUserPassword);
        using (MailMessage message = new MailMessage())
        {
            message.From = new MailAddress(gmailUserName);
            message.Subject = subject == null ? "" : subject;
            message.Body = body == null ? "" : body;
            message.IsBodyHtml = isBodyHtml;

            foreach (string email in emailToAddress)
            {                   
                message.To.Add(email);
            }
            if (ccemailTo != null && ccemailTo.Length > 0)
            {
                foreach (string emailCc in ccemailTo)
                {                       
                    message.CC.Add(emailCc);
                }
            }
            try
            {
                smtpClient.Send(message);                 
                return "Email Send SuccessFully";
            }
            catch
            {                  
                return "Email Send failed";
            }
        }
    }
}

Step 3: Build your Class Library.

2. Add WCF Service Application Project

Step 1: Add reference of Class Library Project to that WCFServiceHost project.

Step 2: Delete IService1.Cs and the code-behind file.

Step 3: Right click on that SaleService.svc and select view Markup:

Step 4: Change the Service Name from that markup:

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<%@ ServiceHost Language="C#" Debug="true" 
  Service="EmailServices.EmailService" CodeBehind="EmailService.svc.cs" %>

Step 5: And build the solution and WCFServiceHost set as startup project and EmailService.svc set as startup page and run the service.

3. Testing Email Service

1. Use WCFSTORM for testing WCF Service . You can download WCFSTORM fromhttp://www.wcfstorm.com/wcf/home.aspx.
2. Open WCFStrom and add the following endpoint http://localhost:53818/EmailService.svc?wsdl.

By using this, you have successfully send email using WCF Service.

Please see the attached source code.

Happy programming!!

If you have any queries, Reply Me

Source from

http://www.codeproject.com/Tips/685171/Send-Email-using-WCF-Service